High vacuum systems are source extraction systems that draw the welding fume at very close proximity (2 - 6 inches) to the welding arc. The extraction equipment is designed such that it draws the air at a very high air transport velocity and high pressure, but at a low air volume, typically 50 - 160 CFM when using 1.5 - 3 inch diameter hose or duct. These systems require very large extraction fans to create the high operating pressure. Types of extraction devices include suction nozzles, flex hoses and welding guns with integrated fume extraction.
The extraction system hoses and duct sizes are usually very small and can be easily moved about the work area or used in confined spaces. Also, due to the low volume of air movement, make-up air or outside air introduced back into a space that a ventilation system has exhausted outside is kept at a minimum.
BENEFITS OF A HIGH VACUUM CENTRAL SYSTEM INCLUDE:
- Automatic filter cleaning
- Low maintenance
- Economical to operate
TYPICALLY INSTALLED IN:
- Schools with individual welding booths
- Training facilities
- Facilities with fabrication of smaller parts that are not moved around
- Low ceiling facilities
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HIGH VACUUM CENTRAL SYSTEM
High vacuum systems are source extraction systems that draw the welding fume at very close proximity (2 - 6 inches) to the welding arc. The extraction equipment is designed such that it draws the air at a very high air transport velocity and high pressure, but at a low air volume, typically 50 - 160 CFM when using 1.5 - 3 inch diameter hose or duct. These systems require very large extraction fans to create the high operating pressure. Types of extraction devices include suction nozzles, flex hoses and welding guns with integrated fume extraction.
The extraction system hoses and duct sizes are usually very small and can be easily moved about the work area or used in confined spaces. Also, due to the low volume of air movement, make-up air or outside air introduced back into a space that a ventilation system has exhausted outside is kept at a minimum.
